Toaru Majutsu no Index: New Testament - Volume 18, Chapter 3: Golden - A.D.1900_Invisible_War.

At her wedding banquet, a man claiming to be Selina's lover stormed in, brandishing so-called intimate photos and causing chaos.Selina immediately saw through this as a scheme orchestrated by her half-sister, Natalia. However, Selina's fiancé, Ryan, not only refused to believe her but also went out of his way to defend Natalia.It turned out that Ryan and Natalia had already developed feelings for each other in secret. Everyone—Selina's father, stepmother, and Ryan's parents—knew about their affair, except for Selina, who was left in the dark.Taking advantage of the situation, Selina's father suggested swapping brides, proposing that Natalia replace Selina and complete the wedding. Ryan's family not only didn’t object but wholeheartedly supported the idea.That was the moment Selina finally realized the cruel truth: her family and Ryan's family were nothing but wolves in sheep’s clothing!“Cancel the engagement? Fine. But let it be clear—I’m the one rejecting you, you two-timing, spineless excuse for a man!” Selina declared with unshakable confidence.Her gaze then swept across the room, landing on an elegant and distinguished man. She vaguely remembered him as Ryan’s younger uncle. Walking over, she boldly asked, “Sir, how about getting married?”The man raised an eyebrow, finding her audacity intriguing. “It would be my honor, madam,” he replied....

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

“The more the Holy See supports me, the more it means I am doing the right thing. The more the heretics oppose me, the more it means I am doing the right thing.”

“If even the heretics praise me, it proves that I did the right thing. If the heretics don’t say a word, it shows that I did something impeccable!”

“If the Holy See opposes me, it means that they have degenerated into evil heretics. The more the heretics oppose me, the more it means that I have done the right thing.”?

In 681, Ansu, the youngest Pope in the history of the Holy See, was crowned Holy Pope. He delivered a speech and gave important instructions for the subsequent de-deification work. Pope Anzu emphasized:

“And now both the Holy See and heretics are against me, which just shows that I am on the right path!”

…

685 years.

“It’s not that the evil god can’t be summoned, but it’s more cost-effective to choose him to take the stage.”

Sylvia, the former Saint of the Demon Tribe, commented this way.

As soon as these remarks came out, they instantly aroused the attention of all walks of life – the large-scale documentary “The Legend of Pope Anzu” will continue to be broadcast for you.

——

This is the story of a top evil player speeding through a fantasy world.

- Description from novelbuddy

A soul was employed by a higher being to help him manage his world. How will our protagonist live her life to the fullest while also fulfilling her new duties?I don't own Naruto. I adjusted the story to my liking. English is not my main language so don't bother about grammar mistakes too much.